I[C:2]1[CH:3]=[C:4]([CH:9]=[CH:10][C:11]=1[OH:12])[C:5]([O:7][CH3:8])=[O:6].[CH3:13][O:14][C:15]1[CH:20]=[CH:19][C:18]([C:21]#[CH:22])=[CH:17][CH:16]=1.Cl>CN(C=O)C.N1CCCCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:8][O:7][C:5]([C:4]1[CH:9]=[CH:10][C:11]2[O:12][C:21]([C:18]3[CH:19]=[CH:20][C:15]([O:14][CH3:13])=[CH:16][CH:17]=3)=[CH:22][C:2]=2[CH:3]=1)=[O:6]A mixture of Methyl 3-Iodo-4-hydroxybenzoate (0.7 g, 2.5 mmol), 4-Methoxyphenylacetylene (0.33 g, 2.5 mmol), Pd(Cl)2(PPh3)2 (0.05 g) and Cul (0.03 g) in DMF/Piperidine (20 ml) was heated at 6° C. After 2 hr, the reaction was cooled and poured into 2N HCl. The aqueous layer was extracted with EtOAc and then separated, dried, concentrated to give a solid. The solid was triturated with MeOH, filtered to give 142 (0.5 g, 71%): Mp=157–159° C.; 1H NMR (CDCl3) δ 8.28 (d, 1 H, J=1.3 Hz), 7.97 (dd, 1 H, J=8.5 Hz, 1.7 Hz), 7.82–7.79 (m, 2 H), 7.51 (d, 1 H, 8.5 Hz), 6.99 (d, 2 H, J=8.3 Hz), 6.93 (d, 1 H, J=9 Hz), 3.94 (s, 3 H), 3.87 (s, 3 H); MS 283 (M+H)+
불러오는 중…
